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Case FileNARA NAID 28962265 · T1206 Roll 23

Project Blue Book Case File

Sacramento, CaliforniaMay 1955

Unidentified

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from Sacramento, California in May 1955. The full case file (4 scanned pages of witness statements, Air Force memoranda, and investigator notes) is reproduced below as held by the National Archives. The Air Force assigned this case to its broader investigation of unidentified aerial phenomena alongside ~12,600 other reports filed between 1947 and 1969. Citation: NARA Record Group 341, Microfilm Publication T1206, Roll 23.

Reported location

Sacramento, California

Date of incident

May 1955

State / country

CA / US

Page count

4 scanned pages

USAF evaluation

unidentified

Microfilm

T1206, Roll 23

Original case file scans

Original case file · scanned by NARAPage 1 of 4
Transcribed text
p EL s— Po. ‘ ;
i Wi Bi UFCB INDEX CARD Wie i |
I [pate 2. LOCATION | 12. CONCLUSIONS
P. 3 ‘lay 1955 Sacramento, California |
3 2 0O Was Balloon :
: 2% #4 Probably Balloon
i 3. DATE-TIME GROUP 4. TYPE OF OBSERVATION 0 Possibly Balloon
| LOCH idl cmisssniiintiviiin cdi stoiniincs ai XGround-Vi sual 0O Ground-Radar 0 Was Aircraft
: 70330 7 Va 5g a Probably Aircraft
1 GMT 23 » AF 0 Air- Visual O Air-Intercept Radar 0 Possibly Aircraft
;- 5. PHPTOS 6. SOURCE 0 Was Astronomical
f C Yes a PlfoBaBY Astronomical ‘
§ i ER Civilian ossibly Astronomical
a "7. LENGTH OF OBSERVATION : 8. NUMBER OF OBJECTS | 9. COURSE CEE) ED
a fa :
S10 seconds one (1) fae away £z 2 ldo Data for Evaluation
: 10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
Cne (1) silver object, possible spherical, | = Dus to the brevity of aizhiing and |
] aoproximately the size of a pertmy held at arm's the delay in the receipt of the
3 length was observed to fly directly away preliminary rspord at this Haade
3 from the observer at what was estimated a | = quarters and the improbabiliiy of
1 speed mich greater than that of a conventio furtyer investigation uncovering
] Jats new significant information, no
4 follow-up investigation was authore
i AISOP Form 5 (15 Oct 54) Eee
i AR i Se ri a a SR a Sas ae i
/ 4

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Source: National Archives Catalog · NAID 28962265

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